CN214473495U - Lithium battery charging and discharging clamp with high current - Google Patents
Lithium battery charging and discharging clamp with high current Download PDFInfo
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- CN214473495U CN214473495U CN202120111992.0U CN202120111992U CN214473495U CN 214473495 U CN214473495 U CN 214473495U CN 202120111992 U CN202120111992 U CN 202120111992U CN 214473495 U CN214473495 U CN 214473495U
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- bakelite
- pressing plate
- push rod
- lithium battery
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Abstract
The utility model discloses a large-current lithium battery charging and discharging clamp, which comprises a bakelite platform, wherein a group of symmetrically arranged hold-down mechanisms are arranged on the bakelite platform, and an upper pressure plate and a lower pressure plate which are mutually laminated are sequentially arranged under each hold-down mechanism; the lower pressing plate is fixed on the bakelite platform and is provided with a current interface, and the upper pressing plate is movably fixed above the lower pressing plate through a bearing seat and is provided with a voltage interface; the pressing mechanism can press down on the upper surface of the upper pressing plate so as to press the lithium battery between the upper pressing plate and the lower pressing plate. The utility model provides a pair of lithium cell charge and discharge anchor clamps of heavy current provide a safe, convenient, accurate platform for lithium cell charge and discharge, through the top board with the laminating of the positive negative pole of lithium cell on the holding down plate, the handspike through rotatory hold-down mechanism makes the quick top board that compresses tightly of spring plunger, has guaranteed the good contact of the positive negative pole of lithium cell, realizes that electric conductivity can stabilize and safety.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell testing arrangement, concretely relates to lithium cell charge-discharge anchor clamps of heavy current.
Background
Lithium batteries are batteries using lithium metal or lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution, and have advantages of high energy density, high cycle frequency, long storage time, and the like, and thus have been widely used not only in portable electronic devices (such as mobile phones, digital video cameras, portable computers, and the like) but also in large and medium-sized electric devices such as electric vehicles, electric bicycles, electric tools, and the like. The large number of lithium batteries also raises a number of safety concerns.
Due to the structural characteristics of the lithium ion battery and the used high-energy density material, the lithium ion battery has the risks of explosion, fire and the like in the use process. In the lithium cell production process, need carry out charge-discharge detection to the lithium cell to judge the condition and the capacity of discharging of lithium cell, charge-discharge detection time measuring needs the charge-discharge device of one set of lithium cell, in order to ensure lithium cell charge-discharge's stability, and current lithium cell anchor clamps operate inconveniently, need adjust the position of probe and splint repeatedly in the face of different model lithium cells, and do not have the charge-discharge device who is used for the heavy current specially, consequently, very need the lithium cell charge-discharge anchor clamps and the technique of a heavy current.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lithium cell charge and discharge anchor clamps of heavy current has structural design novelty, convenient to use, reliable and stable, characteristics that the security performance is high.
The technical scheme adopted by the utility model is that the large-current lithium battery charging and discharging clamp comprises a bakelite platform, a group of symmetrically arranged hold-down mechanisms are arranged on the bakelite platform, and an upper pressure plate and a lower pressure plate which are mutually attached are sequentially arranged under each hold-down mechanism; the lower pressing plate is fixed on the bakelite platform and is provided with a current interface, and the upper pressing plate is movably fixed above the lower pressing plate through a bearing seat and is provided with a voltage interface; the pressing mechanism can press down on the upper surface of the upper pressing plate so as to press the lithium battery between the upper pressing plate and the lower pressing plate.
The utility model is also characterized in that,
the pressing mechanism comprises a trapezoidal connecting piece which is fixed on the U-shaped bottom plate and is hollow inside and a clamp-shaped hand push rod which is fixedly connected on the trapezoidal connecting piece, the lower end of the hand push rod is hinged to the front lower part of the trapezoidal connecting piece through a pin shaft, and the lower ends of two clamps of the hand push rod are positioned on the outer side of the trapezoidal connecting piece; a connecting rod is hinged to the rear upper part of the connecting piece, and a spring plunger piston which is vertically downward is fixed at the other end of the connecting rod; the upper ends of the hand push rod clamps are fixedly connected with a locking push rod through a pin shaft, the locking push rods are hinged in the two clamps, and the lower ends of the locking push rods are hinged in the middle of the connecting rod through the pin shaft and used for pressing down the connecting rod when the hand push rod is lifted; the spring plunger can press against the upper surface of the upper pressure plate.
The locking push rod is a special-shaped piece, is hinged on the outer side of the connecting rod, and can be fastened at the lower end when the locking push rod is vertical.
The two trapezoidal connecting pieces are respectively fixed on the vertical surface of the U-shaped bottom plate, and the U-shaped bottom plate is fixed on the bakelite platform.
The upper half part of the upper pressure plate is a bakelite insulating plate, and the lower half part attached to the lower pressure plate is phosphor-copper; the lower pressing plate is made of phosphor copper.
The two pressing mechanisms are separated by a bakelite baffle fixed on the bakelite platform.
Still include the bakelite upper cover plate, the bakelite upper cover plate is used for blocking the current interface to avoid operating personnel to touch by the electric shock.
A plurality of through holes are uniformly formed on the bakelite platform.
The beneficial effects of the utility model are that, the utility model provides a pair of lithium cell charge and discharge anchor clamps of heavy current provide a safe, convenient, accurate platform for lithium cell charge and discharge, through the top board with the laminating of the positive negative pole of lithium cell on the holding down plate, the handspike through rotatory hold-down mechanism makes the quick top board that compresses tightly of spring plunger, has guaranteed the good contact of the positive negative pole of lithium cell, realizes that electric conductivity can stabilize and safety.
Furthermore, by setting the lower pressing plate, good contact and conductivity of the anode and the cathode of the lithium battery can be ensured, and current is provided for charging and discharging through the current interface.
Further place the lithium cell on the bakelite platform, transmit current-voltage to the lithium cell through last holding down plate, through the through-hole on the bakelite platform for the lithium cell charge-discharge heat dissipation.
Furthermore, the left pressing plate, the right pressing plate, the upper pressing plate and the lower pressing plate can be isolated in an insulating mode through the bakelite separating plate, and safety of positive and negative electrode circuits of the lithium battery is guaranteed.
Furthermore, the current interface is protected inside through the bakelite upper cover plate, so that direct contact is avoided, and the safety of operators is ensured.
Drawings
Fig. 1 is a schematic structural view of a large-current lithium battery charging and discharging clamp of the present invention;
fig. 2 is a rear view of a large-current lithium battery charging and discharging clamp of the present invention;
FIG. 3 is a partially enlarged view of a large current lithium battery charging/discharging clamp of the present invention;
fig. 4 is the utility model relates to a local enlarger of hold-down mechanism of lithium cell charge-discharge anchor clamps of heavy current.
In the figure, 1, a bakelite platform, 2, a voltage interface, 3, an upper pressing plate, 5, a bakelite upper cover plate, 6, a lower pressing plate, 7, a bakelite clapboard, 8, a current interface, 9, a hand push rod, 10, a connecting rod, 11, a spring plunger, 12, a trapezoidal connecting piece, 13, a locking push rod and 14, a U-shaped bottom plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses a heavy current lithium battery charging and discharging clamp, as shown in figure 1, which comprises a bakelite platform 1, a set of symmetrically arranged hold-down mechanisms are arranged on the bakelite platform 1, and an upper pressure plate 3 and a lower pressure plate 6 which are mutually attached are sequentially arranged under each hold-down mechanism; the lower pressing plate 6 is fixed on the bakelite platform 1 and is provided with a current interface 8, and the upper pressing plate 3 is movably fixed above the lower pressing plate 6 through a bearing seat and is provided with a voltage interface 2; the pressing mechanism can press down on the upper surface of the upper pressing plate 3 so as to press the lithium battery between the upper pressing plate 3 and the lower pressing plate 6.
As shown in fig. 3 and 4, the pressing mechanism includes a trapezoidal connecting piece 12 fixed on the U-shaped bottom plate 14 and having a hollow interior, and a pincer-like hand push rod 9 fixedly connected to the trapezoidal connecting piece 12, a lower end of the hand push rod 9 is hinged to a front lower portion of the trapezoidal connecting piece 12 through a pin shaft, and lower ends of two pincers of the hand push rod 9 are located outside the trapezoidal connecting piece 12; a connecting rod 10 is hinged to the rear upper part of the trapezoidal connecting piece 12, and a spring plunger 11 which faces downwards vertically is fixed to the other end of the connecting rod 10; the upper end of the hand push rod 9 clamp is fixedly connected with a locking push rod 13 through a pin shaft, the locking push rod 13 is hinged in the two clamps, and the lower end of the locking push rod 13 is hinged in the middle of the connecting rod 10 through the pin shaft and used for pressing down the connecting rod 10 when the hand push rod is lifted; the spring plunger 11 can be pressed on the upper surface of the upper pressure plate 3;
the locking push rod 13 is driven to move by rotating the hand push rod 9, the connecting rod 10 is driven by the locking push rod 13, the spring plunger is driven by the connecting rod 10 to move up and down, and the upper pressing plate is quickly pressed tightly to fix the positive and negative pole pieces of the lithium battery.
The locking push rod 13 is a special-shaped piece, is hinged on the outer side of the connecting rod 10, and can fasten the connecting rod 10 at the lower end when being vertical.
The two trapezoidal connecting pieces 12 are respectively fixed on the vertical surface of the U-shaped bottom plate 14, and the U-shaped bottom plate 14 is fixed on the bakelite platform 1.
The upper half part of the upper pressure plate 3 is a bakelite insulating plate and contacts a spring plunger 11 of the pressing mechanism; the lower half part attached to the lower pressing plate 6 is phosphor copper; the lower press plate 6 is made of phosphor copper.
The two pressing mechanisms are separated by a bakelite baffle 7 fixed on the bakelite platform; the lithium battery positive and negative electrode pressing plate is used for isolating the direct contact of the left pressing plate, the right pressing plate, the upper pressing plate and the lower pressing plate, and avoiding the short circuit of the positive electrode and the negative electrode of the lithium battery.
As shown in fig. 2, the electric shock protection device further comprises a bakelite upper cover plate 5, wherein the bakelite upper cover plate 5 is used for blocking the current interface 8 so as to prevent an operator from being shocked.
Still evenly seted up a plurality of through-hole on the bakelite platform 1 for place the lithium cell during charge-discharge, and the heat dissipation that can be fine.
The utility model discloses a lithium cell charge-discharge anchor clamps of heavy current's application method as follows:
1. as shown in fig. 1, fig. 2, fig. 3 and fig. 4, firstly, a hand push rod of the pressing mechanism is rotated downwards to the lowest position, then a spring column is driven by the push rod and the connecting rod to rotate upwards to the highest position, then the upper pressing plate is turned over, and the lithium battery to be tested is placed on the bakelite platform;
2. respectively placing the positive electrode and the negative electrode of the lithium battery on the lower pressing plate, turning over and closing the upper pressing plate, upwards rotating the hand push rod to the vertical direction, driving the spring plunger to downwards move and press on the upper pressing plate through the locking push rod and the connecting rod, and adjusting the pressure through the spring plunger;
3. opening the bakelite upper cover plate, connecting a lead at a voltage and current interface, and then closing the bakelite upper cover plate;
4. after all operations are finished, a power switch is turned on, and the lithium battery starts to be charged and discharged, the device can provide 300A of large current to the maximum, the change of the lithium battery in the charging and discharging process is observed, and data is recorded;
5. after the lithium cell charge-discharge was accomplished, the power was broken earlier, with the handspike downwardly rotating to the minimum, and then drives the spring post through locking push rod, connecting rod and upwards rotates to the highest point, then overturns the top board to the highest point.
6. And taking out the lithium battery, detecting the change of the lithium battery in the charging and discharging process, and finishing the test.
Claims (8)
1. The utility model provides a lithium cell charge-discharge anchor clamps of heavy current which characterized in that: the device comprises a bakelite platform (1), wherein a group of symmetrically arranged pressing mechanisms are arranged on the bakelite platform (1), and an upper pressing plate (3) and a lower pressing plate (6) which are mutually attached are sequentially arranged right below each pressing mechanism; the lower pressing plate (6) is fixed on the bakelite platform (1) and is provided with a current interface (8), and the upper pressing plate (3) is movably fixed above the lower pressing plate (6) through a bearing seat and is provided with a voltage interface (2); the pressing mechanism can press down the upper surface of the upper pressing plate (3) so as to press the lithium battery between the upper pressing plate (3) and the lower pressing plate (6).
2. The high-current lithium battery charging and discharging clamp as claimed in claim 1, wherein the compressing mechanism comprises an internally hollow trapezoid connecting piece (12) fixed on the U-shaped bottom plate (14) and a clamp-shaped hand push rod (9) fixedly connected on the trapezoid connecting piece (12), the lower end of the hand push rod (9) is hinged to the front lower part of the connecting piece (12) through a pin shaft, and the lower ends of two clamps of the hand push rod (9) are located outside the trapezoid connecting piece (12); a connecting rod (10) is hinged to the rear upper part of the trapezoidal connecting piece (12), and a spring plunger (11) which faces downwards vertically is fixed to the other end of the connecting rod (10); the upper ends of the clamps of the hand push rod (9) are fixedly connected with a locking push rod (13) through a pin shaft, the locking push rod (13) is hinged in the two clamps, and the lower end of the locking push rod (13) is hinged in the middle of the connecting rod (10) through the pin shaft and used for pressing down the connecting rod (10) when the hand push rod is lifted; the spring plunger (11) can be pressed on the upper surface of the upper pressure plate (3).
3. A high current lithium battery charging and discharging clamp as claimed in claim 2, wherein the locking push rod (13) is a special-shaped member hinged to the outer side of the connecting rod (10), and the lower end of the locking push rod can be fastened to the connecting rod (10) when the locking push rod is vertical.
4. A high-current lithium battery charging and discharging clamp as claimed in claim 2, wherein the two trapezoidal connecting pieces (12) are respectively fixed on the vertical surface of a U-shaped bottom plate (14), and the U-shaped bottom plate (14) is fixed on the bakelite platform (1).
5. A high-current lithium battery charging and discharging clamp as claimed in claim 1, wherein the upper half part of the upper pressure plate (3) is a bakelite insulating plate, and the lower half part attached to the lower pressure plate (6) is phosphor-copper; the lower pressing plate (6) is made of phosphor copper.
6. A high current lithium battery charging and discharging clamp as claimed in claim 1, wherein the two compressing mechanisms are separated by a bakelite separator (7) fixed on a bakelite platform.
7. A high-current lithium battery charging and discharging clamp as claimed in claim 1, further comprising a bakelite upper cover plate (5), wherein the bakelite upper cover plate (5) is used for blocking the current interface (8) so as to prevent an operator from being shocked by an electric shock.
8. A high-current lithium battery charging and discharging clamp as claimed in claim 1, wherein the bakelite platform (1) is further provided with a plurality of through holes uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120111992.0U CN214473495U (en) | 2021-01-15 | 2021-01-15 | Lithium battery charging and discharging clamp with high current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120111992.0U CN214473495U (en) | 2021-01-15 | 2021-01-15 | Lithium battery charging and discharging clamp with high current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214473495U true CN214473495U (en) | 2021-10-22 |
Family
ID=78111976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120111992.0U Active CN214473495U (en) | 2021-01-15 | 2021-01-15 | Lithium battery charging and discharging clamp with high current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214473495U (en) |
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2021
- 2021-01-15 CN CN202120111992.0U patent/CN214473495U/en active Active
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